Georges and Anne are an elderly couple, both retired music teachers living in Paris, who enjoy a quiet, cultured life filled with books, music, and intellectual engagement. In their eighties, they share a deep bond, punctuated by affectionate humor and a shared appreciation for the arts. Their love is put to the test when Anne suddenly suffers a stroke at the breakfast table one morning, which leaves her right side paralyzed and confined to a wheelchair. As Anne's health rapidly deteriorates, Georges finds himself in the role of her caretaker, struggling to cope with the physical and emotional demands of her condition.

The couple's daughter, Eva, is also a musician and travels frequently for her career. Although she cares for her parents, she is largely absent, leaving Georges to confront the daily challenges of caregiving alone. The film delves into the complexities of love, aging, and illness, portraying the couple's resilience in the face of adversity. Georges's unwavering commitment to Anne epitomizes the solemn vows they once took, as he fights to preserve her dignity and the semblance of their once-vibrant life together, even as the reality of Anne's situation grows increasingly grim.